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Suitability of different types of in vitro diagnostic tests during the progression of COVID-19 infection. Approximate time intervals of SARS-CoV-2 exposure, incubation, symptoms, and recovery are illustrated. The detectability of the viral genetic material, viral proteins, and antibodies (IgM and IgG) to the virus are shown for the RT-PCR test, rapid antigen test, and antibody tests, respectively.
